Hideaki Anno’s "Evangelion: 3.0 + 1.0: Thrice Upon a Time,” which began streaming internationally on Amazon Prime on Aug. 13, is the film that anime fans have awaited for 25 years. The fourth and final theatrical feature in the "rebuild” of his landmark 1995-96 television series, "Neon Genesis Evangelion,” brings the epic adventure to a definitive conclusion.

A compelling, complex work that mixes mecha battles with apocalyptic Christian symbols, Jewish mysticism and teenage angst, "Evangelion” (pronounced eh-van-GEH-lee-on, with a hard G) ranks among the most widely discussed TV series in anime history. Its influence is extensive and includes Japanese animated fantasies and Guillermo del Toro’s 2013 sci-fi adventure "Pacific Rim.” And fans continue to debate its significance, subtext and details.